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Official Journal of the Japan Wood Research Society

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Fig. 2 | Journal of Wood Science

Fig. 2

From: Development of bark-based adhesives for plywood: utilization of flavonoid compounds from bark and wood. II

Fig. 2

The ratios of the PF resin (solids), bark particles and water in bark particle adhesives. “PF resin” and “P” indicate phenol–formaldehyde resin. “RP Bark” and “B” indicate the bark particles (< 63 µm). “F” indicates wheat flour. “CF-A” means “Commercial formulation A” and refers to the formulation of a commercial adhesive for plywood using PF resin A. It consists of PF resin, inorganic components such as calcium carbonate and water

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